解决rabbitMQ时报错CalltoundefinedfunctionPhpAmqpLib\Wire\bcadd()

环境&＃xff1a;lnmp 

PHP 7.2.12-1&＃43;ubuntu18.04.1&＃43;deb.sury.org&＃43;1 (cli) (built: Nov 12 2018 09:55:44) ( NTS )

以下模块已开启

执行以下rabbitMQ会报错

/*** &＃64;link http://www.yiiframework.com/* &＃64;copyright Copyright (c) 2008 Yii Software LLC* &＃64;license http://www.yiiframework.com/license/*/namespace app\commands;use yii\console\Controller;
use yii\console\ExitCode;use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Message\AMQPMessage;/*** This command echoes the first argument that you have entered.** This command is provided as an example for you to learn how to create console commands.** &＃64;author Qiang Xue * &＃64;since 2.0*/
class SendController extends Controller
{public function actionIndex(){$connection &＃61; new AMQPStreamConnection(&＃39;localhost&＃39;, 5672, &＃39;admin&＃39;, &＃39;admin&＃39;);$channel &＃61; $connection->channel();$channel->queue_declare(&＃39;hello&＃39;, false, false, false, false);$msg &＃61; new AMQPMessage(&＃39;Hello World!!!!!!&＃39;);$channel->basic_publish($msg, &＃39;&＃39;, &＃39;hello&＃39;);echo " [x] Sent &＃39;Hello World!&＃39;\n";$channel->close();$connection->close();}
}

这是由于bcmath的版本对不上的原因

执行以下更新&＃xff1a;

sudo apt-get install php7.2-bcmath

再次执行